Following the recent launch of Firefox 151, Mozilla has now made available Thunderbird 151, the latest stable release of its versatile open-source email, calendar, address book, chat, and news client.
Key features of Thunderbird 151 include the activation of OAuth sign-in with account auto-configuration, enhanced support for sorting tasks by their creation or modification date, and the ability to modify the OAuth provider details specifically for EWS (Exchange Web Services) accounts.
In this version, Thunderbird reinstates the default application check upon startup, removes the automatic attachment of OpenPGP public keys in signed-only messages, and improves keyboard navigation within calendar view tabs. Additionally, it introduces support for canceling newsgroup postings and provides search result counts in the “Find in Message” feature.
Various bugs have been addressed to improve functionality, such as preserving HTML formatting when replying with selected text, fixing issues with multipart/related attachments during editing or forwarding, and ensuring correct display of auto-discovered Account Hub values during manual edits.
Furthermore, the update resolves problems involving forwarded malformed MIME emails with empty bodies, incorrect display dates for some IMAP emails, invisibility of the OWL add-on description in non-en-US locales, and other issues impacting virtual folders and task management.
Security enhancements and various user interface improvements also accompany this release. Users can review the complete list of changes in the release notes.
You can download Thunderbird 151 from the official website for Linux, macOS, and Windows. If you obtained Thunderbird through your Linux distribution’s repositories, you’ll need to wait for the update to be available there.